摘要
湿式制动器制动过程中摩擦盘温度过高易发生热弹性变形现象,从而影响制动性能,研究不同油槽结构型式对湿式制动器摩擦盘流体换热影响,提高摩擦盘使用寿命具有重要意义。建立径向槽摩擦盘、倾斜槽摩擦盘、连通槽摩擦盘和方格槽摩擦盘4种不同油槽结构摩擦盘模型,利用Fluent软件仿真计算得到各摩擦盘在不同进口速度下流体特性和对流换热特性,确定径向槽对油液扰流作用最小,冷却效果好,方格槽油液利用率高,对流换热效果较优,而进口速度对连通槽流体换热效果影响最明显。研究结果可为湿式制动器摩擦盘油槽结构设计提供参考。
During the braking process of the wet disc brake friction,high temperature leads thermally elastic deformation,which could affect the braking performance. Therefore,there is a great significance to investigate the fluid heat transfer influence of different type fuel tank structure to disc wet brake friction plate and improve the service life of friction plate.Establishing four different sump model of friction disc structure such as radial slots friction disc,friction disc inclined grooves,communicating groove friction disc and friction disc slot grid,using Fluent software simulation to calculate for each friction disc at different inlet velocity of the fluid properties and convective thermal characteristics. We conclude the minimum spoiler influence of radial groove oil,effective cooling performance and high utilization for the oil groove box,excellent convective heat transfer performance,while the velocity of imports groove fluid communication has the most obvious effect on heat transfer. The research results provide a reference for the structure design of wet brake friction plate sump.
作者
高洋洋
何锋
余国宽
刘忠
GAO Yang-yang;HE FengI;YU Guo-kuan;LIU Zhong(School of Mechanical Engineering, Guizhou University, Guizhou Guiyang 550025, China;Guizhou Aerospace Chaoyang Science and Technology Co., Ltd., Guizhou Zhunyi 563000, China)
出处
《机械设计与制造》
北大核心
2018年第6期203-206,共4页
Machinery Design & Manufacture
基金
贵州省工业攻关重点项目(黔科合GZ字[2014]3008)
关键词
湿式制动器
摩擦盘
油槽结构
流体特性
对流换热
Wet Brakes
Friction Disc
Sump Structure
Fluid Properties
Convective Heat Transfer
